Home / 347,905.12-521,693.20-134,772.86

Finding the Fourth Proportional to 347,905.12, 521,693.20 and 134,772.86

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Solution

The fourth proportional to 347,905.12, 521,693.20 and 134,772.86 is: 202,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,905.12 : 521,693.20 = 134,772.86 : x
  2. Step 2: Convert to fraction form
    347,905.12/521,693.20 = 134,772.86/x
  3. Step 3: Cross multiply
    347,905.12x = 521,693.20 × 134,772.86
  4. Step 4: Simplify right side
    347,905.12x = 70,310,082,965.39
  5. Step 5: Solve for x
    x = 70,310,082,965.39/347,905.12
  6. Step 6: Final answer
    x = 202,095.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.